From: Geert Uytterhoeven Date: Mon, 2 Jun 2014 13:38:18 +0000 (+0200) Subject: spi: rspi: Add DMA support for RSPI on RZ/A1H X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e7fb921d9f62df05240ad1a74b5a0f623e503c9c;p=deliverable%2Flinux.git spi: rspi: Add DMA support for RSPI on RZ/A1H Enable DMA support for RSPI on r7s72100 (RZ/A1H). Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index bec81470dd9c..4bc4138e002b 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -625,6 +625,9 @@ static int rspi_rz_transfer_one(struct spi_master *master, rspi_rz_receive_init(rspi); + if (master->can_dma && __rspi_can_dma(rspi, xfer)) + return rspi_dma_transfer(rspi, &xfer->tx_sg, &xfer->rx_sg); + ret = rspi_pio_transfer(rspi, xfer->tx_buf, xfer->rx_buf, xfer->len); if (ret < 0) return ret;